Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
sach tren » sach tien, sach tranh
kien truc » kien thuc
khoa phan » khoa than, khoa phau, khoan phai
tren hoc » truyen hoc, trung hoc, triet hoc
hoa phan » hoa dan, co phan
cong may » cong xay, cong ma, cong hay
vu sach » vu bach, su sach, vu khach
tinh » trinh, dinh, minh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach tren hoc chuyen đe ky thuat: kien truc bach ((khoa phan) OR (hoa phan)) cong may tinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach tren hoc chuyen đe ky thuat: kien truc bach ((khoa phan) OR (hoa phan)) cong may tinh".
• Adding a wildcard symbol may retrieve word variants: vu sach tren hoc chuyen đe ky thuat: kien truc bach ((khoa phan) OR (hoa phan)) cong may tinh*.